M R Poovamma (women's 400m), Rajiv Arokai (men's 400m), Jithin Thomas (men's high jump) and Nitin Rawat (men's 3000m) bagged a gold each while Krishna Poonia (women's discus), Kheta Ram (men's 5000m) and Renjith Maheswary (men's triple jump) grabbed a silver apiece.
Siddhanth Thingalaya (men's 110m hurdles), Anu Mariam Jose (women's 400m) and Arpinder Singh (men's triple jump) won a bronze each at the IPE Chonburi Campus Stadium.
Poonia, who had finished fourth in the first leg, missed the Moscow World Championships 'B' standard of 59.50m by seven centimetres.
M R Poovamma won his second gold of the series in women's 400m race in 53.57sec. She had won the race in the first leg in Bangkok in 52.97sec.
Another Indian, Anu Mariam Jose finished third in 54.86sec, well below her bronze-winning effort of 53.95sec in Bangkok.
Rajiv Arokia changed the colour of the medal from the silver he had won in Bangkok in the first leg to gold here in men's 400m race as he set new personal best timing of 46.54sec. He had finished second in Bangkok in 46.91sec.
